Grams to Ounces Converter

Convert grams to ounces instantly, with a reference table covering recipe quantities and postal weights.

Grams

Ounces

1 g = 0.0353 oz

Multiply grams by 0.03527396 to get ounces.

The link carries the values you entered, so whoever opens it sees the same result. Nothing is stored on our side — the numbers travel in the link itself.

Grams to ounces reference table

The conversions people look up most often, rounded to 4 decimal places.

Common grams to ounces conversions
Gram (g)	Ounce (oz)
1 g	0.0353 oz
5 g	0.1764 oz
10 g	0.3527 oz
25 g	0.8818 oz
50 g	1.7637 oz
100 g	3.5274 oz
125 g	4.4092 oz
200 g	7.0548 oz
250 g	8.8185 oz
300 g	10.5822 oz
454 g	16.0144 oz
500 g	17.637 oz
1,000 g	35.274 oz

The grams people look up most

100 g = 3.5274 oz: A standard chocolate bar, and the quantity nutrition labels are written per.
250 g = 8.8185 oz: A European butter block, against the American one-pound box - which is why the two do not swap cleanly in a recipe.
454 g = 16.0144 oz: One pound to within a fraction of a gram, which is why American butter is sold in 454 g boxes rather than round metric ones.
500 g = 17.637 oz: Half a kilo, and the usual pack size for pasta, rice and sugar across Europe.

How the grams to ounces calculation works

An avoirdupois ounce is exactly 28.349523125 grams, so:

ounces = grams ÷ 28.349523125

The long decimal is a consequence, not a choice: the pound was defined as 0.45359237 kg, and an ounce is one sixteenth of a pound.

Cooking is the main use, and the main trap. A recipe asking for "8 oz of flour" means 8 ounces of weight — 226.8 g. But "8 fl oz" is a volume, and 8 fl oz of flour weighs only about 125 g. The two units share a name and measure entirely different things. If a recipe mixes them, weight ounces are for solids and fluid ounces are for liquids.

Common kitchen quantities:

100 g → 3.53 oz (a standard chocolate bar)
250 g → 8.82 oz (a European butter block)
454 g → 16.00 oz — exactly one pound, which is why US butter comes in 1 lb boxes
500 g → 17.64 oz

Postage is the other everyday case. A first-class US letter is capped at 3.5 oz, or 99.2 g. Royal Mail's large-letter threshold is 100 g, which is 3.53 oz — near enough that a letter at the US limit sits right on the UK one.

For rough work, divide by 28 and you are within 1.2%. For anything baked, weigh it properly: bread and pastry are the recipes least forgiving of a 2% error.

Frequently asked questions

Is a 400 g tin of tomatoes the same as a 14 oz one?

Not quite. The European standard tin is 400 g, which converts to 14.11 oz, while the usual American can is 14.5 oz, or 411 g. Eleven grams disappears without trace in a stew and matters in a set custard or a batch of jam, where the ratio between ingredients is the recipe. Read the tin in front of you rather than the recipe’s country of origin.

Why does my kitchen scale seem unreliable at small weights?

Most domestic scales read to the nearest gram and have a usable minimum load several times that, so anything under about 5 g is reported loosely whatever the display shows. One gram is 0.035 oz, so the imperial reading looks coarser still. For yeast, salt or spices, use a spoon measure or a 0.1 g jeweller’s scale - the limit here is the instrument, not the conversion.

Why does a pack show both 100 g and 3.5 oz when neither is exact?

Because one quantity has been rounded twice: 100 g really is 3.527 oz, and each figure is rounded for its own market. The small e printed beside a European weight is a separate rule again - it certifies the average of a production batch rather than the contents of your particular pack, which may legally sit slightly under the stated figure.

Grams to Ounces Converter